Current Study 12, Chapter 3. The Benelux Countries
Current Study 12, Chapter 3. The Benelux Countries, pamphlet, September 1964; Robbins Air Force Base, Georgia. (https://texashistory.unt.edu/ark:/67531/metapth1010700/: accessed August 5, 2020), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting National WASP WWII Museum.